// Multiple file selector by Stickman -- http://www.the-stickman.com 
// with thanks to: [for Safari fixes] Luis Torrefranca -- http://www.law.pitt.edu and Shawn Parker & John Pennypacker -- http://www.fuzzycoconut.com [for duplicate name bug] 'neal'

function MultiSelector( list_target, max ){
	
	this.list_target = list_target;
	this.count = 0;
	this.id = 0;
	if( max ){
		this.max = max;
  } else {
	  this.max = -1;
  };

  this.addElement = function( element ){
	  if( element.tagName == 'INPUT' && element.type == 'file' ){
		  element.name = 'attfile[]';
		  element.id = 'file_' + this.id++;
		  element.multi_selector = this;
		  element.onchange = function(){
			  var new_element = document.createElement( 'input' );
			  new_element.type = 'file';
			  this.parentNode.insertBefore( new_element, this );
			  this.multi_selector.addElement( new_element );
			  this.multi_selector.addListRow( this );
			  this.style.position = 'absolute';
			  this.style.left = '-1000px';
		  };
		  if( this.max != -1 && this.count >= this.max ){
			  element.disabled = true;
		  };
		  this.count++;
		  this.current_element = element;
	  } else {
		  alert( 'Error: not a file input element' );
	  };
  };

  this.addListRow = function( element ){
	  var new_row = document.createElement( 'div' );
	  var new_row_button = document.createElement( 'input' );
	  new_row_button.type = 'button';
	  new_row_button.value = delbutton;
	  new_row.element = element;
	  new_row_button.onclick= function(){
		  this.parentNode.element.parentNode.removeChild( this.parentNode.element );
		  this.parentNode.parentNode.removeChild( this.parentNode );
		  this.parentNode.element.multi_selector.count--;
		  this.parentNode.element.multi_selector.current_element.disabled = false;
		  return false;
		};
		new_row.innerHTML = element.value;
		new_row.appendChild( new_row_button );
		this.list_target.appendChild( new_row );
	};

};